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By: Williams, A JType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 100Series:Issue:Date: 1980Page Range: 173--175Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Williams, A JType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 100Series:Issue:Date: 1980Page Range: 208--212Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Powell, C Mca - Fergusson, Christopher L. - Williams, A JType: ArticleIn: Proceedings of the Linnean Society of New South WalesVolume: 104Series:Issue:Date: 1981Page Range: 195--210Publication Info: Sydney Linnean Society of New South WalesSubjects: